Dayco 17620 accessory drive belt for the 1983-1987 Ford F-250 V8 7.5L and other vehicles carries engine power to the belt-driven accessories. This Dayco accessory drive belt is not a banded belt.
A belt that squeals, cracks or frays may be worn out. A misaligned pulley or a failing alternator or water pump bearing can be behind a squeal too, so track down the cause before you buy a belt. Inspect it only with the engine off.
This belt is listed for a wide range of Ford, GMC, Western Star and American Motors models, including the 1983-1987 Ford F-250 V8 7.5L, the 2012 Western Star 4900EX 6-cylinder 12.7L or 14.0L and the 1999-2007 GMC W5500 Forward. If your vehicle is not one of these, look up your exact model and engine on the Buyer's Guide tab.
Fit and size
Build and materials
One accessory drive belt. The 1983-1987 Ford F-250 V8 7.5L takes one, while some other applications take more.
Is the Dayco 17620 belt right for the 1983-1987 Ford F-250 V8 7.5L?
Yes. Dayco 17620 is listed for the 1983-1987 Ford F-250 V8 7.5L, and that truck takes one belt.
What temperature range is this accessory drive belt made for?
Dayco 17620 has an operating temperature range of -35 F to 175 F (-37.2 C to 79.4 C).
Is this belt a bottom cog type or a banded belt?
This belt has bottom cog construction and is not a banded belt. It is made from a synthetic rubber compound.
Does one belt cover the 1999-2007 GMC W5500 Forward?
Yes, the 1999-2007 GMC W5500 Forward is listed and takes one belt. This listing is a single belt.
How can I tell if this drive belt is worn out?
Cracks, fraying or a glazed surface can mean the belt is worn. Look it over with the engine off and cool.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
